Finding the Third Proportional to 168,145.50 and 351,870

Step by Step Solution

1. Step 1: Write the proportion equation
   168,145.50 : 351,870 = 351,870 : x
2. Step 2: Convert to fraction form
   168,145.50/351,870 = 351,870/x
3. Step 3: Cross multiply
   168,145.50x = 351,870 × 351,870
4. Step 4: Simplify right side
   168,145.50x = 123,812,496,900
5. Step 5: Solve for x
   x = 123,812,496,900/168,145.50
6. Step 6: Final answer
   x = 736,341.42